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Giant Button Head Coupler

SKU: 304300-A

1 review
  • The Alemite 304300-A Giant Button Head Coupler is a pull-on coupler for use with giant button-head fittings.  Giant button head fittings feature a 7/8 diameter head .
  • Working pressure of 10,000 PSI.
  • 1/8 NPTF thread. Compatible with most grease hoses.
  • Attach a standard grease fitting to create a giant button head adaptor that connects to your LockNLube Grease Coupler

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The Alemite Giant Button Head Coupler is a pull-on coupler for use with giant button-head fittings. To grease standard button head fittings, see our product listing for the Button Head Coupler.

If you’re greasing standard Zerks and giant button head grease fittings with the same grease gun, consider adding a straight 1/8″ NPT grease fitting to your order. Attach it to this coupler and make a button head adaptor that connects to your LockNLube Grease Coupler.


LockNLube provides a full 30-day money-back guarantee on all products purchased from its website. If you are dissatisfied with your purchase, you can return it to us by shipping the item back within 30 days of purchase. Once we receive your return, we will refund you the full purchase price of the item.

Please ensure that the item you are returning is repackaged securely, with all its component parts included. Please also include any documentation that came with your original order, such as a packing slip or order confirmation.


Return items to us by shipping to:

Lock and Lube
12 Commerce Ave. Suite #3
West Lebanon, NH 03784

For more information, please call 603.795.2298. We’re a small business and we’ll pick up the phone in New Hampshire when you call.


Description Specification
Brand Name Alemite
Part Number 304300-A
Working Pressure 10,000 PSI
Grease Fitting Compatibility Giant Button Head
Thread 1/8″ NPT (female)
Customer Reviews
5 Based on 1 Reviews
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John H.
United States United States
Heavy duty

Very good product.

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